Mandurah Line Major Disruption - From Sunday 26 December As part of METRONET’s Thornlie-Cockburn Link project, the Mandurah Line will have a major disruption from Sunday 26 December 2021. The works will join the Mandurah Line with the Thornlie Line. During this disruption, trains will not run between Elizabeth Quay and Aubin Grove stations. Services between Aubin Grove and Mandurah stations will run on a reduced frequency. Transperth is currently conducting research on the Mandurah Line to better understand the impacts to passengers. We encourage anyone who is asked to participate to do so to help us plan for this closure. We will provide more details of train replacement bus services nearer to the time. In the meantime, for more information on the project and to provide feedback visit Building for Tomorrow.